Question

In a triangle,(a,b,c) angle A=40°, angle B=70°. Find the angle of angle C​

Answer 1

Thorem says that all angles in a triangle are 180°

If two angles are given then we can find third angle by addition and subtraction

40+70+X= 180

110+X= 180

X= 70

Answer 2

Answer:

70°

Step-by-step explanation:

Sum of all the angles of a triangle = 180°

<A = 40° , <B = 70°

<A+<B+<C = 180°

<40°+<70°+<C = 180°

<110°+<C = 180°

<C = 180°-110° = 70°